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linux/fs/dcache.c
Will Deacon 8cc07c808c fs: dcache: Use READ_ONCE when accessing i_dir_seq 
i_dir_seq is subject to concurrent modification by a cmpxchg or
store-release operation, so ensure that the relaxed access in
d_alloc_parallel uses READ_ONCE.

Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-02-25 12:51:10 -05:00

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